389982170

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{8443}}^1$

素因数の和:8630

約数の個数: 32

約数和(自身を含む): 729561600

約数和(自身を除く): 339579430

約数列:

[1, 2, 5, 10, 31, 62, 149, 155, 298, 310, 745, 1490, 4619, 8443, 9238, 16886, 23095, 42215, 46190, 84430, 261733, 523466, 1258007, 1308665, 2516014, 2617330, 6290035, 12580070, 38998217, 77996434, 194991085, 389982170]

約数ペア:

[(1, 389982170), (2, 194991085), (5, 77996434), (10, 38998217), (31, 12580070), (62, 6290035), (149, 2617330), (155, 2516014), (298, 1308665), (310, 1258007), (745, 523466), (1490, 261733), (4619, 84430), (8443, 46190), (9238, 42215), (16886, 23095)]